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CVE-2026-39386

Neko is a a self-hosted virtual browser that runs in Docker and uses WebRTC In versions 3.0.0 through 3.0.10 and 3.1.0 through 3.1.1, any authenticated user can immediately obtain full administrative control of the entire Neko instance (member management, room settings, broadcast control, session termination, etc.). This results in a complete compromise of the instance. The vulnerability has been patched in v3.0.11 and v3.1.2. If upgrading is not immediately possible, the following mitigations c
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:03c89aba3ded7cce5b2e9b6d0226f370a0bc3898221b210bbdd7d3b627d7312c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 5 assertions

{"cweId":"CWE-269","description":"CWE-269: Improper Privilege Management","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/3/descriptions/0

{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/4/descriptions/0

Affected products and versions

1 source assertion
{"product":"neko","vendor":"m1k1o","versions":[{"status":"affected","version":">= 3.0.0, < 3.0.11"},{"status":"affected","version":">= 3.1.0, < 3.1.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

5 source assertions
{"cweId":"CWE-269","description":"CWE-269: Improper Privilege Management","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/3/descriptions/0
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/problemTypes/4/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/m1k1o/neko/releases/tag/v3.0.11","tags":["x_refsource_MISC"],"url":"https://github.com/m1k1o/neko/releases/tag/v3.0.11"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/references/1
{"name":"https://github.com/m1k1o/neko/releases/tag/v3.1.2","tags":["x_refsource_MISC"],"url":"https://github.com/m1k1o/neko/releases/tag/v3.1.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/references/2
{"name":"https://github.com/m1k1o/neko/security/advisories/GHSA-2gw9-c2r2-f5qf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/m1k1o/neko/security/advisories/GHSA-2gw9-c2r2-f5qf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d57023c80bc9a62021f5296c7602343566ad120fe317d0cba821c4b858772dfd · sha256:4d0d3ed13fc37865… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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